Gaudin Hypothesis for the XYZ Spin Chain
Yasuhiro Fujii, Miki Wadati
Abstract
The XYZ spin chain is considered in the framework of the generalized algebraic Bethe ansatz developed by Takhtajan and Faddeev. The sum of norms of the Bethe vectors is computed and expressed in the form of a Jacobian. This result corresponds to the Gaudin hypothesis for the XYZ spin chain.
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